Single blade whisk



FIG. 1 is a perspective view of a single blade whisk showing my new design, the handle shown in broken lines for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a left side elevation view thereof, the opposite side being identical;

FIG. 3 is a front elevation view thereof, the opposite side being identical;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a single blade whisk, as shown and described. 